Visible-sheet binder



March 20, 1928.

C. A. CEDERLEAF VISIBLE SHEET BINDER Filed May 2 1. 1927 Age edcrleaf Patented Mar. 20, 1928.

srAfrEs PATE Nr oFFic-Ef. l

CLARENCE A. CEDERLEAF, OF KANSAS CITY, MISSOURI, ASSIGNOR TO TRYING-PITT MANUFACTURING COMPANY, OF KANSAS CITY, MISSOURI, CORPORATION `E MISSOURI.

vIsInLn-snnn'r BINDER.

Application led May 21,

This inventionrelates to loose lea-f binders and has for its primary` object the provision of a binder especially adapted for `use in the filing of a'plurality of oyerlapping sheets 1n such a manner thatthey may be offset to eX- Pss e' predetermined margin alergthe, 11pperor lower e dge s.

' One of the objects of the instant invention iSA to. provide, a, binder metal which 111- Cfhide a plurality.. Qf. tegels Plate, ueltsall operatively Supprtel by the" Single Spena plate in suchfa. mannerithatany one of the units` may. be. opened or closed without interference and without imparting movement to the` unit next adjoining; y y

Another objectofthis invention is to" provide friction-,reducing and spacing elements which may be interposed` between: successive toggle. plate units` of thev binder tov insure properV opening or closing of anyone unit and to further insurefthe equal spacing., apart ofthe many ring-forming andVsheet-holding hokscarriedk bythe independently. Operable toggle plate units.

Itis anecognized fact in the art that itis desirable to bindy alarge number of overlapping sheets in one device. and to provide. in that'device means whereby one or. more of the. sheets may be rernoyed without disturbing the remaining. Sheets and without having to, operatel all of' the sheet-holding members of the binder. Accordingly this invention provides mechanism fullling lthe above objects and show-n in one-kof`v its forms, in the accompanying drawing vwherein Figure 1 is a. face view of a loose leaf binder made in accordance with this invention,

Fig. 2 is a fragmentary face view of the metal part of the binder showing by broken lines one toggle plate unit in the open position Y. 3 is an enlarged cross section taken on line lill-"III of Fig. 2, and,

Fig. 4 is an enlarged perspective view, showing one end of a toggle plate unit operatively supported by the arcuate spring back.

Similar reference characters designate like parts throughout the several views and the numerals 5 and 6 designate the two covers of the loose leaf binder which are joined by the ordinary iexible back 7 to which kmay be ailixed the metal part of the binder which essentially includes the arcuate back spring 8 1927. Serial N0. 193,245.

spring. To carry out this inventiona plu@- rality of toggle-plate units 10 are provided each of which comprises a pair of-plates 1 2 articulate@ along their inneranvd adjacent edges by anysuitable means 13, andjengaged, along the remote or outer edges by the flange 9, as c'learly shown in F igs.` 3 and 4. y

As..V illustrated in Fig. 2 th'etoggl'e-plate units ILO/extend theentire length of spring 8Y .1y

and the ends.l of plates 1:2 are substantia in abutting relation. To insure that ythe movement of an intermediate unit will not impart action to the unitsv next adjoining, means has been providedto reduce the friction between adjacent units which means is also utilized as a spacing element to hol'dfthe l units 10 in the properly spaced relation and to further maintainy all ofthe hooks 14 the proper distance apart AS iSlCuStOmar-yithe sheet-holding rings are made upof apairof hooks 14 as shown. in F ig.` 2. l l

There4 are: a plurality of these hooks 14 carried by each plate 12.' The means .ftor eliminating frictionv and for holdingthe. va-

rious units in theproperly spaced relation l khashere been shown to. be a longitudinally extending lug 15y which projects from eac end of each plate 12 to present a friction face comparatively small in area with respect to the whole end of its supporting plate 12. It

may be possible to eliminate the lug on one V end of each plate as the immediately adjoining plate carries a lug 15 but the preferred embodiment of the invention provides that these lugs 15 shall engage as shown in Fig. 2.

Obviously these lugs 15 may be made longer or shorter to space the end hooks 14 apart the required distance. Any one ofk the toggle units 10 may be opened without disturbing the others and any one of sheets 16 may be removed without opening the rings which hold the remaining sheets in the binder.

Fig. 1 shows the well-known sheet 16 which may be' used with devices of this char? acter and which has a plurality of perforaa `being equally spaced a tions 17 therethrough along a line spaced inwardly and parallel to the edge to be bound.

yIn the practical operation and manufacture of a loose leaf binder of this character it is desirable to space the sheet-holding hooks 14 a distance apart which is a multiple of the distance between perforations 17 formed through each of the sheets lwhich are to be used in the binder.

A binder made in accordance with this invention is practical, overcomes the objections to all other sheet-holding devices which are extremely difficult to operate, is durable and may be utilized to arrange a large number of sheets in many positions, valuable to the user. i

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is: i l. In. a loose leaf binder, a spring base plate'and a plurality of toggle plate units operatively supported in end to end relation by said spring plate, each unit having a set of coacting sheet-holding hooks operable independently of the hooks carried-by the remaining units, said sheet-holding hooks art throughout the length .of the spring p ate whereby a plurality of relatively narrow loose leaves may be-retained by said hooks in overlapping relation, the hook sets engaging any leaf being operable independently of the remaining sets to release that leaf only.

2. In a loose leaf binder, a spring base vplate and a plurality of toggle plate units operatively supported in end-abutting relation by said spring plate, the abutting ends of said toggle plates having friction-reduc-l ing means whereby a single unit may be operated independently of the adjoining units. v

3. In a loose lleaf binder, a spring base plate having inturned flanges along its edges,

Y a plurality of toggle plate units operatively l operated to the open or closed positions, `hooks being maintained in equally y relation throughout the length of said binder.

supported by said spring plate beneath said anges to be retained in the open or closed position thereby and combined frictionreducing and spacing elements between adjacent toggle plate units to permit the independent opening or closing of Vany one unit supported by said spring plate.

Ll. In aloose leaf binder, a spring base plate, a plurality of toggle plate units operatively supported in longitudinal alinement byysaidspring plate, combined frictionreducing and spacing elements integral with each toggle plate and in abutting relation and a plurality of ring-forming hooks carried by each plate respectively of each unit, the hooks of all units being equally spaced apart throughout the length of the binder when said spacing elements areA in the abut ting relation.

c 5. In a loose leaf binder, a spring base plate, a plurality havingits plates articulated along the adja# cent edges, a longitudinally `extending lug integral with each toggle plate at the end thereof and a plurality` of ring-forming ysheet-holding hooks carried lby each toggle plate, the hooks of all toggle "plate units being equally spaced when the lugs of each plate included in the `binder are in the engaged position relative tothose of the next adjoining toggle plates.

6. In a loose leaf binder, plate, ried thereby, ring-forming hooks carried by each toggle Vplate and Vfriction reducing means operatively interposed between the adjoining endsof all ofsaid toggle plates whereby the hooks on any unit may be said ace a spring base y In testimony whereof, I hereunto aix my signature.

CLARENCE A. GermanienF.`

a plurality of toggle plate units car-i of toggle plate units each den 

